Sprocket



FIG. 1 is a front elevation view.

FIG. 2 is a side elevation view.

FIG. 3 is a back plan view.

FIG. 4 is a cross-sectional view taken along the line 4-4 in FIG. 1; and,

FIG. 5 is a rear perspective view.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a sprocket, as shown and described. 